PROVISIONAL DATA SUBJECT TO REVISION

LOCATION.--Lat 47° 16'29", long 116° 11'17" (NAD27), in NW1/4 NW1/4 SE1/4 sec.3, 
   T.45 N., R.2 E., Shoshone County, Calder quad., Hydrologic Unit 17010304, 
   on right bank, 125 ft downstream from road bridge at Calder, and at mile 42.9.

DRAINAGE AREA.--1,030 mi2, approximately.

PERIOD OF RECORD.--April 1911 to September 1912 (published as "near Calder"), 
   July 1920 to current year.

REVISED RECORDS.--WSP 1182: Drainage area.

GAGE.--Datum of gage is 2,171.76 ft above NGVD of 1929. Apr. 14, 1911 to 
   Sept. 30, 1912, nonrecording gage at site 2.5 mi downstream at different datum. 
   Nonrecording gage at present site July 13 to Dec. 21, 1920, water-stage recorder 
   at present site thereafter. Datum July 13, 1920 to Sept. 30, 1966, 75 ft lower 
   than present datum, and datum Oct. 1, 1966 to Aug. 14, 1972, 15 ft lower than 
   present datum.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 53,000 ft3/s Dec. 23, 1933, 
   computed on basis of slope between gages downstream; maximum gage height, 
   18.1 ft, Apr. 18, 1938, from floodmark, present datum; minimum discharge, 
   87 ft3/s Nov. 29, 1979; minimum gage height, 3.43 ft, Dec. 5, 1928, present datum.

Current shift-adjusted rating in tab-separated format.
These are updated daily and can change often! If you use these ratings it is important that you update often so that you have the most current version.
What is a shift-adjusted rating?

River forecast for St. Joe River at Calder is available at the National Weather Service Advanced Hydrologic Prediction Services web page.

River forecast for St. Joe River at St. Maries is also available at the National Weather Service Advanced Hydrologic Prediction Services web page.

Station operated in cooperation with Bonneville Power Administration.